A giant Flying Boat, the "Iris-Blackburn", takes off for the R.A.F. base at Basra.
Item title reads - Giant 'plane of the air. 3 engined all-metal hulled 13 ton "Iris-Blackburn" Flying Boat, largest yet, destined for R.A.F. base at Basra, launched. Brough.
Various shots as the giant Flying Boat is towed along by a traction engine, it is a large aeroplane capable of floating and taking off from the water. M/S as it is wheeled down to the water's edge. L/S of it in the water, it sails along on the surface. L/S as it speeds across the sea and takes off.